Holographic CCFT Pseudo-Entropy
Abstract
According to the flat/CCFT correspondence, Carrollian conformal field theories (CCFT) in d dimensions are dual to asymptotically flat spacetimes in d+1 dimensions. In this paper, starting from the holographic interpretation of pseudo-entropy in the (A)dS/CFT, we show that both extremal spacelike and timelike curves possess a well-defined flat-space limit. The length of these curves can be regarded as the real and imaginary parts of the pseudo-entropy for the underlying field theory, where only the real part has been considered thus far. Our calculations can confirm that the entanglement entropy in the CCFTs is fundamentally pseudo-entropy.
Cite
@article{arxiv.2511.04398,
title = {Holographic CCFT Pseudo-Entropy},
author = {Reza Fareghbal and Abolfazl Hassani Majoulan},
journal= {arXiv preprint arXiv:2511.04398},
year = {2026}
}
Comments
21 pages, 4 figures, V2: Ref. added, section " Summary and future directions" rewritten, V3: minor corrections, Ref. added, Published version